52115070 has 32 divisors (see below), whose sum is σ = 142944768. Its totient is φ = 11911968.

The previous prime is 52115069. The next prime is 52115087. The reversal of 52115070 is 7051125.

It is a super-2 number, since 2×52115070² = 5431961042209800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123874 + ... + 124293.

It is an arithmetic number, because the mean of its divisors is an integer number (4467024).

Almost surely, 2^52115070 is an apocalyptic number.

52115070 is an abundant number, since it is smaller than the sum of its proper divisors (90829698).

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

52115070 is a wasteful number, since it uses less digits than its factorization.

52115070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248184.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 52115070 is about 7219.0768107840. The cubic root of 52115070 is about 373.5262333973.

Adding to 52115070 its reverse (7051125), we get a palindrome (59166195).

The spelling of 52115070 in words is "fifty-two million, one hundred fifteen thousand, seventy".