215235022530 has 64 divisors (see below), whose sum is σ = 564232169088. Its totient is φ = 52112655360.

The previous prime is 215235022529. The next prime is 215235022531. The reversal of 215235022530 is 35220532512.

It is an interprime number because it is at equal distance from previous prime (215235022529) and next prime (215235022531).

It is a super-2 number, since 2×215235022530² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (215235022531) 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, 146167 + ... + 672186.

It is an arithmetic number, because the mean of its divisors is an integer number (8816127642).

Almost surely, 2^215235022530 is an apocalyptic number.

215235022530 is an abundant number, since it is smaller than the sum of its proper divisors (348997146558).

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

215235022530 is a wasteful number, since it uses less digits than its factorization.

215235022530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819171.

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 215235022530 in words is "two hundred fifteen billion, two hundred thirty-five million, twenty-two thousand, five hundred thirty".