55161502 has 16 divisors (see below), whose sum is σ = 91613952. Its totient is φ = 24698520.

The previous prime is 55161473. The next prime is 55161553. The reversal of 55161502 is 20516155.

It is a congruent number.

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, 17238 + ... + 20185.

It is an arithmetic number, because the mean of its divisors is an integer number (5725872).

Almost surely, 2^55161502 is an apocalyptic number.

55161502 is a deficient number, since it is larger than the sum of its proper divisors (36452450).

55161502 is a wasteful number, since it uses less digits than its factorization.

55161502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37503.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 55161502 is about 7427.0789682082. The cubic root of 55161502 is about 380.6671153146.

Adding to 55161502 its reverse (20516155), we get a palindrome (75677657).

The spelling of 55161502 in words is "fifty-five million, one hundred sixty-one thousand, five hundred two".