55910642 has 16 divisors (see below), whose sum is σ = 85752000. Its totient is φ = 27331920.

The previous prime is 55910623. The next prime is 55910653. The reversal of 55910642 is 24601955.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55910599 and 55910608.

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, 22292 + ... + 24672.

It is an arithmetic number, because the mean of its divisors is an integer number (5359500).

Almost surely, 2^55910642 is an apocalyptic number.

55910642 is a deficient number, since it is larger than the sum of its proper divisors (29841358).

55910642 is a wasteful number, since it uses less digits than its factorization.

55910642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 55910642 is about 7477.3419073893. The cubic root of 55910642 is about 382.3826333345.

The spelling of 55910642 in words is "fifty-five million, nine hundred ten thousand, six hundred forty-two".