55724622 has 8 divisors (see below), whose sum is σ = 111449256. Its totient is φ = 18574872.

The previous prime is 55724611. The next prime is 55724633. The reversal of 55724622 is 22642755.

It is an interprime number because it is at equal distance from previous prime (55724611) and next prime (55724633).

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

55724622 is an admirable number.

It is a super-3 number, since 3×55724622³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4643713 + ... + 4643724.

It is an arithmetic number, because the mean of its divisors is an integer number (13931157).

Almost surely, 2^55724622 is an apocalyptic number.

55724622 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.

55724622 is a wasteful number, since it uses less digits than its factorization.

55724622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9287442.

The product of its digits is 33600, while the sum is 33.

The square root of 55724622 is about 7464.8926315119. The cubic root of 55724622 is about 381.9580877419.

The spelling of 55724622 in words is "fifty-five million, seven hundred twenty-four thousand, six hundred twenty-two".