72515476 has 48 divisors (see below), whose sum is σ = 147087360. Its totient is φ = 30935520.

The previous prime is 72515467. The next prime is 72515477. The reversal of 72515476 is 67451527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72515477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105831 + ... + 106513.

It is an arithmetic number, because the mean of its divisors is an integer number (3064320).

Almost surely, 2^72515476 is an apocalyptic number.

72515476 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

72515476 is an abundant number, since it is smaller than the sum of its proper divisors (74571884).

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

72515476 is a wasteful number, since it uses less digits than its factorization.

72515476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844 (or 842 counting only the distinct ones).

The product of its digits is 58800, while the sum is 37.

The square root of 72515476 is about 8515.6019164825. The cubic root of 72515476 is about 417.0072132891.

The spelling of 72515476 in words is "seventy-two million, five hundred fifteen thousand, four hundred seventy-six".