55604757 has 16 divisors (see below), whose sum is σ = 80940608. Its totient is φ = 33747840.

The previous prime is 55604741. The next prime is 55604789. The reversal of 55604757 is 75740655.

It is not a de Polignac number, because 55604757 - 2⁴ = 55604741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55604737) 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, 6919 + ... + 12612.

It is an arithmetic number, because the mean of its divisors is an integer number (5058788).

Almost surely, 2^55604757 is an apocalyptic number.

It is an amenable number.

55604757 is a deficient number, since it is larger than the sum of its proper divisors (25335851).

55604757 is a wasteful number, since it uses less digits than its factorization.

55604757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19620.

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 55604757 is about 7456.8597277943. The cubic root of 55604757 is about 381.6840241360.

The spelling of 55604757 in words is "fifty-five million, six hundred four thousand, seven hundred fifty-seven".