55357042 has 16 divisors (see below), whose sum is σ = 90081432. Its totient is φ = 25361280.

The previous prime is 55357037. The next prime is 55357061. The reversal of 55357042 is 24075355.

It can be written as a sum of positive squares in 4 ways, for example, as 47183161 + 8173881 = 6869^2 + 2859^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55356995 and 55357013.

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, 4209 + ... + 11332.

Almost surely, 2^55357042 is an apocalyptic number.

55357042 is a deficient number, since it is larger than the sum of its proper divisors (34724390).

55357042 is a wasteful number, since it uses less digits than its factorization.

55357042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15693.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 55357042 is about 7440.2313136085. The cubic root of 55357042 is about 381.1163891928.

The spelling of 55357042 in words is "fifty-five million, three hundred fifty-seven thousand, forty-two".