55765640434 has 16 divisors (see below), whose sum is σ = 96207150528. Its totient is φ = 23747332752.

The previous prime is 55765640431. The next prime is 55765640461. The reversal of 55765640434 is 43404656755.

It is not an unprimeable number, because it can be changed into a prime (55765640431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12683344 + ... + 12687739.

It is an arithmetic number, because the mean of its divisors is an integer number (6012946908).

Almost surely, 2^55765640434 is an apocalyptic number.

55765640434 is a deficient number, since it is larger than the sum of its proper divisors (40441510094).

55765640434 is a wasteful number, since it uses less digits than its factorization.

55765640434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25371249.

The product of its (nonzero) digits is 6048000, while the sum is 49.

The spelling of 55765640434 in words is "fifty-five billion, seven hundred sixty-five million, six hundred forty thousand, four hundred thirty-four".