1450556557 has 4 divisors (see below), whose sum is σ = 1497348736. Its totient is φ = 1403764380.

The previous prime is 1450556491. The next prime is 1450556561. The reversal of 1450556557 is 7556550541.

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 1450556557 - 2²³ = 1442167949 is a prime.

It is a super-2 number, since 2×1450556557² = 4208228650111388498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1450556257) 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, 23396043 + ... + 23396104.

It is an arithmetic number, because the mean of its divisors is an integer number (374337184).

Almost surely, 2^1450556557 is an apocalyptic number.

It is an amenable number.

1450556557 is a deficient number, since it is larger than the sum of its proper divisors (46792179).

1450556557 is an equidigital number, since it uses as much as digits as its factorization.

1450556557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46792178.

The product of its (nonzero) digits is 525000, while the sum is 43.

The square root of 1450556557 is about 38086.1727796322. The cubic root of 1450556557 is about 1131.9959911644.

The spelling of 1450556557 in words is "one billion, four hundred fifty million, five hundred fifty-six thousand, five hundred fifty-seven".