52561401 has 8 divisors (see below), whose sum is σ = 70115424. Its totient is φ = 35024160.

The previous prime is 52561393. The next prime is 52561403. The reversal of 52561401 is 10416525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52561401 - 2³ = 52561393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52561403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9565 + ... + 14021.

It is an arithmetic number, because the mean of its divisors is an integer number (8764428).

Almost surely, 2^52561401 is an apocalyptic number.

It is an amenable number.

52561401 is a deficient number, since it is larger than the sum of its proper divisors (17554023).

52561401 is a wasteful number, since it uses less digits than its factorization.

52561401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8391.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 52561401 is about 7249.9242065004. The cubic root of 52561401 is about 374.5895384430.

Adding to 52561401 its reverse (10416525), we get a palindrome (62977926).

The spelling of 52561401 in words is "fifty-two million, five hundred sixty-one thousand, four hundred one".