260400053 has 4 divisors (see below), whose sum is σ = 260474880. Its totient is φ = 260325228.

The previous prime is 260400047. The next prime is 260400059. The reversal of 260400053 is 350004062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (260400047) and next prime (260400059).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260400053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 260399998 and 260400034.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260400059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31925 + ... + 39242.

It is an arithmetic number, because the mean of its divisors is an integer number (65118720).

Almost surely, 2^260400053 is an apocalyptic number.

It is an amenable number.

260400053 is a deficient number, since it is larger than the sum of its proper divisors (74827).

260400053 is an equidigital number, since it uses as much as digits as its factorization.

260400053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74826.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 260400053 is about 16136.9158453529. The cubic root of 260400053 is about 638.5776134157.

The spelling of 260400053 in words is "two hundred sixty million, four hundred thousand, fifty-three".