13925557 has 8 divisors (see below), whose sum is σ = 14570496. Its totient is φ = 13283952.

The previous prime is 13925551. The next prime is 13925573. The reversal of 13925557 is 75552931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13925557 is a prime.

It is a super-2 number, since 2×13925557² = 387842275520498, 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 (13925551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12268 + ... + 13354.

It is an arithmetic number, because the mean of its divisors is an integer number (1821312).

Almost surely, 2^13925557 is an apocalyptic number.

It is an amenable number.

13925557 is a deficient number, since it is larger than the sum of its proper divisors (644939).

13925557 is a wasteful number, since it uses less digits than its factorization.

13925557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667.

The product of its digits is 47250, while the sum is 37.

The square root of 13925557 is about 3731.6962630954. The cubic root of 13925557 is about 240.5862807661.

It can be divided in two parts, 13925 and 557, that multiplied together give a square (7756225 = 2785²).

The spelling of 13925557 in words is "thirteen million, nine hundred twenty-five thousand, five hundred fifty-seven".