52511807 has 4 divisors (see below), whose sum is σ = 52537056. Its totient is φ = 52486560.

The previous prime is 52511803. The next prime is 52511867. The reversal of 52511807 is 70811525.

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

It is a cyclic number.

It is not a de Polignac number, because 52511807 - 2² = 52511803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52511807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52511803) 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, 9194 + ... + 13767.

It is an arithmetic number, because the mean of its divisors is an integer number (13134264).

Almost surely, 2^52511807 is an apocalyptic number.

52511807 is a deficient number, since it is larger than the sum of its proper divisors (25249).

52511807 is a wasteful number, since it uses less digits than its factorization.

52511807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25248.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 52511807 is about 7246.5030876969. The cubic root of 52511807 is about 374.4716874525.

The spelling of 52511807 in words is "fifty-two million, five hundred eleven thousand, eight hundred seven".