52515151 has 8 divisors (see below), whose sum is σ = 56614320. Its totient is φ = 48424512.

The previous prime is 52515139. The next prime is 52515163. The reversal of 52515151 is 15151525.

It is an interprime number because it is at equal distance from previous prime (52515139) and next prime (52515163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52515151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52515101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17220 + ... + 20038.

It is an arithmetic number, because the mean of its divisors is an integer number (7076790).

Almost surely, 2^52515151 is an apocalyptic number.

52515151 is a deficient number, since it is larger than the sum of its proper divisors (4099169).

52515151 is a wasteful number, since it uses less digits than its factorization.

52515151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265.

The product of its digits is 1250, while the sum is 25.

The square root of 52515151 is about 7246.7338160029. The cubic root of 52515151 is about 374.4796361839.

Adding to 52515151 its reverse (15151525), we get a palindrome (67666676).

The spelling of 52515151 in words is "fifty-two million, five hundred fifteen thousand, one hundred fifty-one".