55752615 has 12 divisors (see below), whose sum is σ = 96637944. Its totient is φ = 29734704.

The previous prime is 55752611. The next prime is 55752617. The reversal of 55752615 is 51625755.

It is a happy number.

It is not a de Polignac number, because 55752615 - 2² = 55752611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55752615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55752611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 619429 + ... + 619518.

It is an arithmetic number, because the mean of its divisors is an integer number (8053162).

Almost surely, 2^55752615 is an apocalyptic number.

55752615 is a deficient number, since it is larger than the sum of its proper divisors (40885329).

55752615 is a wasteful number, since it uses less digits than its factorization.

55752615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238958 (or 1238955 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 55752615 is about 7466.7673728328. The cubic root of 55752615 is about 382.0220353141.

The spelling of 55752615 in words is "fifty-five million, seven hundred fifty-two thousand, six hundred fifteen".