55810430 has 64 divisors (see below), whose sum is σ = 114222528. Its totient is φ = 19491840.

The previous prime is 55810427. The next prime is 55810457. The reversal of 55810430 is 3401855.

It is a super-2 number, since 2×55810430² = 6229608193569800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 55810430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197069 + ... + 197351.

It is an arithmetic number, because the mean of its divisors is an integer number (1784727).

Almost surely, 2^55810430 is an apocalyptic number.

55810430 is an abundant number, since it is smaller than the sum of its proper divisors (58412098).

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

55810430 is a wasteful number, since it uses less digits than its factorization.

55810430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 55810430 is about 7470.6378576397. The cubic root of 55810430 is about 382.1540409240.

The spelling of 55810430 in words is "fifty-five million, eight hundred ten thousand, four hundred thirty".