55196913 has 16 divisors (see below), whose sum is σ = 74644416. Its totient is φ = 36277440.

The previous prime is 55196863. The next prime is 55196923. The reversal of 55196913 is 31969155.

It is not a de Polignac number, because 55196913 - 2¹² = 55192817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55196923) 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, 119503 + ... + 119963.

It is an arithmetic number, because the mean of its divisors is an integer number (4665276).

Almost surely, 2^55196913 is an apocalyptic number.

It is an amenable number.

55196913 is a deficient number, since it is larger than the sum of its proper divisors (19447503).

55196913 is a wasteful number, since it uses less digits than its factorization.

55196913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its digits is 36450, while the sum is 39.

The square root of 55196913 is about 7429.4624973816. The cubic root of 55196913 is about 380.7485544783.

The spelling of 55196913 in words is "fifty-five million, one hundred ninety-six thousand, nine hundred thirteen".