53240211520 has 56 divisors (see below), whose sum is σ = 128085320664. Its totient is φ = 21076525056.

The previous prime is 53240211517. The next prime is 53240211551. The reversal of 53240211520 is 2511204235.

It can be written as a sum of positive squares in 4 ways, for example, as 200279104 + 53039932416 = 14152^2 + 230304^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826567 + ... + 888646.

It is an arithmetic number, because the mean of its divisors is an integer number (2287237869).

Almost surely, 2^53240211520 is an apocalyptic number.

It is an amenable number.

53240211520 is an abundant number, since it is smaller than the sum of its proper divisors (74845109144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53240211520 is a wasteful number, since it uses less digits than its factorization.

53240211520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715327 (or 1715317 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 53240211520 its reverse (2511204235), we get a palindrome (55751415755).

The spelling of 53240211520 in words is "fifty-three billion, two hundred forty million, two hundred eleven thousand, five hundred twenty".