55525766 has 4 divisors (see below), whose sum is σ = 83288652. Its totient is φ = 27762882.

The previous prime is 55525759. The next prime is 55525777. The reversal of 55525766 is 66752555.

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

It is a super-2 number, since 2×55525766² = 6166221379773512, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13881440 + ... + 13881443.

It is an arithmetic number, because the mean of its divisors is an integer number (20822163).

Almost surely, 2^55525766 is an apocalyptic number.

55525766 is a deficient number, since it is larger than the sum of its proper divisors (27762886).

55525766 is a wasteful number, since it uses less digits than its factorization.

55525766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27762885.

The product of its digits is 315000, while the sum is 41.

The square root of 55525766 is about 7451.5613129062. The cubic root of 55525766 is about 381.5032009337.

The spelling of 55525766 in words is "fifty-five million, five hundred twenty-five thousand, seven hundred sixty-six".