53015137 has 4 divisors (see below), whose sum is σ = 60588736. Its totient is φ = 45441540.

The previous prime is 53015119. The next prime is 53015141. The reversal of 53015137 is 73151035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53015137 - 2²³ = 44626529 is a prime.

It is a super-2 number, since 2×53015137² = 5621209502257538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53015167) 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, 3786789 + ... + 3786802.

It is an arithmetic number, because the mean of its divisors is an integer number (15147184).

Almost surely, 2^53015137 is an apocalyptic number.

It is an amenable number.

53015137 is a deficient number, since it is larger than the sum of its proper divisors (7573599).

53015137 is an equidigital number, since it uses as much as digits as its factorization.

53015137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7573598.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 53015137 is about 7281.1494284900. The cubic root of 53015137 is about 375.6643323311.

The spelling of 53015137 in words is "fifty-three million, fifteen thousand, one hundred thirty-seven".