55630036 has 24 divisors (see below), whose sum is σ = 121375296. Its totient is φ = 21673920.

The previous prime is 55630021. The next prime is 55630063. The reversal of 55630036 is 63003655.

55630036 = T₇₈ + T₇₉ + ... + T₆₉₃.

It is a super-2 number, since 2×55630036² = 6189401810722592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 55629986 and 55630013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90001 + ... + 90616.

It is an arithmetic number, because the mean of its divisors is an integer number (5057304).

Almost surely, 2^55630036 is an apocalyptic number.

It is an amenable number.

55630036 is an abundant number, since it is smaller than the sum of its proper divisors (65745260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55630036 is a wasteful number, since it uses less digits than its factorization.

55630036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180639 (or 180637 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 55630036 is about 7458.5545516541. The cubic root of 55630036 is about 381.7418556909.

The spelling of 55630036 in words is "fifty-five million, six hundred thirty thousand, thirty-six".