55417942 has 8 divisors (see below), whose sum is σ = 83295000. Its totient is φ = 27652944.

The previous prime is 55417939. The next prime is 55417979. The reversal of 55417942 is 24971455.

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

It is a super-2 number, since 2×55417942² = 6142296591030728, which contains 22 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, 26767 + ... + 28762.

It is an arithmetic number, because the mean of its divisors is an integer number (10411875).

Almost surely, 2^55417942 is an apocalyptic number.

55417942 is a deficient number, since it is larger than the sum of its proper divisors (27877058).

55417942 is a wasteful number, since it uses less digits than its factorization.

55417942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56030.

The product of its digits is 50400, while the sum is 37.

The square root of 55417942 is about 7444.3228033180. The cubic root of 55417942 is about 381.2560972957.

It can be divided in two parts, 554 and 17942, that added together give a square (18496 = 136²).

The spelling of 55417942 in words is "fifty-five million, four hundred seventeen thousand, nine hundred forty-two".