52577421 has 12 divisors (see below), whose sum is σ = 75911328. Its totient is φ = 32355024.

The previous prime is 52577419. The next prime is 52577453. The reversal of 52577421 is 12477525.

It is not a de Polignac number, because 52577421 - 2¹ = 52577419 is a prime.

It is a super-2 number, since 2×52577421² = 5528770398022482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52577411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51345 + ... + 52358.

It is an arithmetic number, because the mean of its divisors is an integer number (6325944).

Almost surely, 2^52577421 is an apocalyptic number.

It is an amenable number.

52577421 is a deficient number, since it is larger than the sum of its proper divisors (23333907).

52577421 is a wasteful number, since it uses less digits than its factorization.

52577421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103732 (or 103719 counting only the distinct ones).

The product of its digits is 19600, while the sum is 33.

The square root of 52577421 is about 7251.0289614647. The cubic root of 52577421 is about 374.6275911758.

The spelling of 52577421 in words is "fifty-two million, five hundred seventy-seven thousand, four hundred twenty-one".