55615746 has 8 divisors (see below), whose sum is σ = 111231504. Its totient is φ = 18538580.

The previous prime is 55615739. The next prime is 55615753. The reversal of 55615746 is 64751655.

It is an interprime number because it is at equal distance from previous prime (55615739) and next prime (55615753).

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

55615746 is an admirable number.

It is a super-2 number, since 2×55615746² = 6186222406273032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4634640 + ... + 4634651.

It is an arithmetic number, because the mean of its divisors is an integer number (13903938).

Almost surely, 2^55615746 is an apocalyptic number.

55615746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55615746 is a wasteful number, since it uses less digits than its factorization.

55615746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9269296.

The product of its digits is 126000, while the sum is 39.

The square root of 55615746 is about 7457.5965297138. The cubic root of 55615746 is about 381.7091661663.

The spelling of 55615746 in words is "fifty-five million, six hundred fifteen thousand, seven hundred forty-six".