55722038 has 16 divisors (see below), whose sum is σ = 84789600. Its totient is φ = 27461376.

The previous prime is 55721959. The next prime is 55722047. The reversal of 55722038 is 83022755.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55721995 and 55722013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67295 + ... + 68117.

It is an arithmetic number, because the mean of its divisors is an integer number (5299350).

Almost surely, 2^55722038 is an apocalyptic number.

55722038 is a deficient number, since it is larger than the sum of its proper divisors (29067562).

55722038 is a wasteful number, since it uses less digits than its factorization.

55722038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 55722038 is about 7464.7195526691. The cubic root of 55722038 is about 381.9521837393.

The spelling of 55722038 in words is "fifty-five million, seven hundred twenty-two thousand, thirty-eight".