55305072604 has 24 divisors (see below), whose sum is σ = 99455880608. Its totient is φ = 26889952320.

The previous prime is 55305072577. The next prime is 55305072607. The reversal of 55305072604 is 40627050355.

It is a super-2 number, since 2×55305072604² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55305072607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159094 + ... + 368674.

Almost surely, 2^55305072604 is an apocalyptic number.

It is an amenable number.

55305072604 is a deficient number, since it is larger than the sum of its proper divisors (44150808004).

55305072604 is a wasteful number, since it uses less digits than its factorization.

55305072604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211405 (or 211403 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 37.

The spelling of 55305072604 in words is "fifty-five billion, three hundred five million, seventy-two thousand, six hundred four".