55151210215594 has 4 divisors (see below), whose sum is σ = 82726815323394. Its totient is φ = 27575605107796.

The previous prime is 55151210215573. The next prime is 55151210215597. The reversal of 55151210215594 is 49551201215155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 45464879845225 + 9686330370369 = 6742765^2 + 3112287^2 .

It is not an unprimeable number, because it can be changed into a prime (55151210215597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13787802553897 + ... + 13787802553900.

Almost surely, 2^{55151210215594} is an apocalyptic number.

55151210215594 is a deficient number, since it is larger than the sum of its proper divisors (27575605107800).

55151210215594 is a wasteful number, since it uses less digits than its factorization.

55151210215594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27575605107799.

The product of its (nonzero) digits is 450000, while the sum is 46.

The spelling of 55151210215594 in words is "fifty-five trillion, one hundred fifty-one billion, two hundred ten million, two hundred fifteen thousand, five hundred ninety-four".