55869630 has 32 divisors (see below), whose sum is σ = 137713824. Its totient is φ = 14495616.

The previous prime is 55869629. The next prime is 55869641. The reversal of 55869630 is 3696855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24057 + ... + 26276.

It is an arithmetic number, because the mean of its divisors is an integer number (4303557).

Almost surely, 2^55869630 is an apocalyptic number.

55869630 is an abundant number, since it is smaller than the sum of its proper divisors (81844194).

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

55869630 is a wasteful number, since it uses less digits than its factorization.

55869630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50380.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 55869630 is about 7474.5989858988. The cubic root of 55869630 is about 382.2891143906.

The spelling of 55869630 in words is "fifty-five million, eight hundred sixty-nine thousand, six hundred thirty".