55057953 has 16 divisors (see below), whose sum is σ = 79769600. Its totient is φ = 33650640.

The previous prime is 55057939. The next prime is 55057963. The reversal of 55057953 is 35975055.

It is a happy number.

It is not a de Polignac number, because 55057953 - 2¹⁰ = 55056929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55057903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13813 + ... + 17346.

It is an arithmetic number, because the mean of its divisors is an integer number (4985600).

Almost surely, 2^55057953 is an apocalyptic number.

It is an amenable number.

55057953 is a deficient number, since it is larger than the sum of its proper divisors (24711647).

55057953 is a wasteful number, since it uses less digits than its factorization.

55057953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31212.

The product of its (nonzero) digits is 118125, while the sum is 39.

The square root of 55057953 is about 7420.1046488577. The cubic root of 55057953 is about 380.4287704038.

The spelling of 55057953 in words is "fifty-five million, fifty-seven thousand, nine hundred fifty-three".