245544541 has 4 divisors (see below), whose sum is σ = 267866784. Its totient is φ = 223222300.

The previous prime is 245544529. The next prime is 245544557. The reversal of 245544541 is 145445542.

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 a cyclic number.

It is not a de Polignac number, because 245544541 - 2²¹ = 243447389 is a prime.

It is a super-2 number, since 2×245544541² = 120584243229801362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245544497 and 245544506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245544511) 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, 11161105 + ... + 11161126.

It is an arithmetic number, because the mean of its divisors is an integer number (66966696).

Almost surely, 2^245544541 is an apocalyptic number.

It is an amenable number.

245544541 is a deficient number, since it is larger than the sum of its proper divisors (22322243).

245544541 is a wasteful number, since it uses less digits than its factorization.

245544541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22322242.

The product of its digits is 64000, while the sum is 34.

The square root of 245544541 is about 15669.8609119545. The cubic root of 245544541 is about 626.1957192698.

The spelling of 245544541 in words is "two hundred forty-five million, five hundred forty-four thousand, five hundred forty-one".