52155215 has 32 divisors (see below), whose sum is σ = 73526400. Its totient is φ = 34781184.

The previous prime is 52155211. The next prime is 52155223. The reversal of 52155215 is 51255125.

It is a cyclic number.

It is not a de Polignac number, because 52155215 - 2² = 52155211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52155211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349961 + ... + 350109.

It is an arithmetic number, because the mean of its divisors is an integer number (2297700).

Almost surely, 2^52155215 is an apocalyptic number.

52155215 is a deficient number, since it is larger than the sum of its proper divisors (21371185).

52155215 is a wasteful number, since it uses less digits than its factorization.

52155215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371.

The product of its digits is 2500, while the sum is 26.

The square root of 52155215 is about 7221.8567557104. The cubic root of 52155215 is about 373.6221196860.

The spelling of 52155215 in words is "fifty-two million, one hundred fifty-five thousand, two hundred fifteen".