55431846 has 24 divisors (see below), whose sum is σ = 123349824. Its totient is φ = 17977680.

The previous prime is 55431839. The next prime is 55431853. The reversal of 55431846 is 64813455.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55431839) and next prime (55431853).

It is a self number, because there is not a number n which added to its sum of digits gives 55431846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40950 + ... + 42281.

It is an arithmetic number, because the mean of its divisors is an integer number (5139576).

Almost surely, 2^55431846 is an apocalyptic number.

55431846 is an abundant number, since it is smaller than the sum of its proper divisors (67917978).

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

55431846 is a wasteful number, since it uses less digits than its factorization.

55431846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83276 (or 83273 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 55431846 is about 7445.2566107556. The cubic root of 55431846 is about 381.2879795184.

It can be divided in two parts, 554 and 31846, that added together give a square (32400 = 180²).

The spelling of 55431846 in words is "fifty-five million, four hundred thirty-one thousand, eight hundred forty-six".