53625609 has 6 divisors (see below), whose sum is σ = 77459226. Its totient is φ = 35750400.

The previous prime is 53625587. The next prime is 53625613. The reversal of 53625609 is 90652635.

It can be written as a sum of positive squares in only one way, i.e., 51883209 + 1742400 = 7203^2 + 1320^2 .

It is not a de Polignac number, because 53625609 - 2⁹ = 53625097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53625679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2979192 + ... + 2979209.

It is an arithmetic number, because the mean of its divisors is an integer number (12909871).

Almost surely, 2^53625609 is an apocalyptic number.

It is an amenable number.

53625609 is a deficient number, since it is larger than the sum of its proper divisors (23833617).

53625609 is a wasteful number, since it uses less digits than its factorization.

53625609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958407 (or 5958404 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 53625609 is about 7322.9508396547. The cubic root of 53625609 is about 377.1007641309.

The spelling of 53625609 in words is "fifty-three million, six hundred twenty-five thousand, six hundred nine".