55947638552115 has 48 divisors (see below), whose sum is σ = 95631035104512. Its totient is φ = 27877650115392.

The previous prime is 55947638552111. The next prime is 55947638552123. The reversal of 55947638552115 is 51125583674955.

It is a happy number.

It is not a de Polignac number, because 55947638552115 - 2² = 55947638552111 is a prime.

It is a super-2 number, since 2×55947638552115² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55947638552111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43214737 + ... + 44490546.

It is an arithmetic number, because the mean of its divisors is an integer number (1992313231344).

Almost surely, 2^{55947638552115} is an apocalyptic number.

55947638552115 is a deficient number, since it is larger than the sum of its proper divisors (39683396552397).

55947638552115 is a wasteful number, since it uses less digits than its factorization.

55947638552115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87705400 (or 87705357 counting only the distinct ones).

The product of its digits is 226800000, while the sum is 66.

The spelling of 55947638552115 in words is "fifty-five trillion, nine hundred forty-seven billion, six hundred thirty-eight million, five hundred fifty-two thousand, one hundred fifteen".