55402374 has 8 divisors (see below), whose sum is σ = 110804760. Its totient is φ = 18467456.

The previous prime is 55402349. The next prime is 55402379. The reversal of 55402374 is 47320455.

It is a sphenic number, since it is the product of 3 distinct primes.

55402374 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55402379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4616859 + ... + 4616870.

It is an arithmetic number, because the mean of its divisors is an integer number (13850595).

Almost surely, 2^55402374 is an apocalyptic number.

55402374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55402374 is a wasteful number, since it uses less digits than its factorization.

55402374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9233734.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 55402374 is about 7443.2771008474. The cubic root of 55402374 is about 381.2203931501.

The spelling of 55402374 in words is "fifty-five million, four hundred two thousand, three hundred seventy-four".