55507736 has 8 divisors (see below), whose sum is σ = 104077020. Its totient is φ = 27753864.

The previous prime is 55507723. The next prime is 55507757. The reversal of 55507736 is 63770555.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×55507736² = 6162217511691392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55507736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3469226 + ... + 3469241.

Almost surely, 2^55507736 is an apocalyptic number.

It is an amenable number.

55507736 is a deficient number, since it is larger than the sum of its proper divisors (48569284).

55507736 is a wasteful number, since it uses less digits than its factorization.

55507736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6938473 (or 6938469 counting only the distinct ones).

The product of its (nonzero) digits is 110250, while the sum is 38.

The square root of 55507736 is about 7450.3514011085. The cubic root of 55507736 is about 381.4619033052.

The spelling of 55507736 in words is "fifty-five million, five hundred seven thousand, seven hundred thirty-six".