55456042 has 8 divisors (see below), whose sum is σ = 83377476. Its totient is φ = 27663552.

The previous prime is 55456021. The next prime is 55456043. The reversal of 55456042 is 24065455.

It can be written as a sum of positive squares in 2 ways, for example, as 40564161 + 14891881 = 6369^2 + 3859^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 55455995 and 55456013.

It is not an unprimeable number, because it can be changed into a prime (55456043) 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, 31153 + ... + 32884.

Almost surely, 2^55456042 is an apocalyptic number.

55456042 is a deficient number, since it is larger than the sum of its proper divisors (27921434).

55456042 is a wasteful number, since it uses less digits than its factorization.

55456042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64472.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 55456042 is about 7446.8813606771. The cubic root of 55456042 is about 381.3434488476.

The spelling of 55456042 in words is "fifty-five million, four hundred fifty-six thousand, forty-two".