55262557 has 4 divisors (see below), whose sum is σ = 63157216. Its totient is φ = 47367900.

The previous prime is 55262513. The next prime is 55262567. The reversal of 55262557 is 75526255.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55262557 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 (55262567) 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, 3947319 + ... + 3947332.

It is an arithmetic number, because the mean of its divisors is an integer number (15789304).

Almost surely, 2^55262557 is an apocalyptic number.

It is an amenable number.

55262557 is a deficient number, since it is larger than the sum of its proper divisors (7894659).

55262557 is an equidigital number, since it uses as much as digits as its factorization.

55262557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7894658.

The product of its digits is 105000, while the sum is 37.

The square root of 55262557 is about 7433.8790008985. The cubic root of 55262557 is about 380.8994322186.

The spelling of 55262557 in words is "fifty-five million, two hundred sixty-two thousand, five hundred fifty-seven".