10645557 has 16 divisors (see below), whose sum is σ = 15462720. Its totient is φ = 6475392.

The previous prime is 10645549. The next prime is 10645559. The reversal of 10645557 is 75554601.

It is not a de Polignac number, because 10645557 - 2³ = 10645549 is a prime.

It is a super-2 number, since 2×10645557² = 226655767680498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1938 + ... + 5004.

It is an arithmetic number, because the mean of its divisors is an integer number (966420).

Almost surely, 2^10645557 is an apocalyptic number.

It is an amenable number.

10645557 is a deficient number, since it is larger than the sum of its proper divisors (4817163).

10645557 is a wasteful number, since it uses less digits than its factorization.

10645557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 10645557 is about 3262.7529786976. The cubic root of 10645557 is about 219.9831736442.

The spelling of 10645557 in words is "ten million, six hundred forty-five thousand, five hundred fifty-seven".