55292511 has 4 divisors (see below), whose sum is σ = 73723352. Its totient is φ = 36861672.

The previous prime is 55292507. The next prime is 55292513. The reversal of 55292511 is 11529255.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55292511 - 2² = 55292507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55292513) 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, 9215416 + ... + 9215421.

It is an arithmetic number, because the mean of its divisors is an integer number (18430838).

Almost surely, 2^55292511 is an apocalyptic number.

55292511 is a deficient number, since it is larger than the sum of its proper divisors (18430841).

55292511 is a wasteful number, since it uses less digits than its factorization.

55292511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18430840.

The product of its digits is 4500, while the sum is 30.

The square root of 55292511 is about 7435.8934231200. The cubic root of 55292511 is about 380.9682395112.

The spelling of 55292511 in words is "fifty-five million, two hundred ninety-two thousand, five hundred eleven".