722520115 has 8 divisors (see below), whose sum is σ = 883383408. Its totient is φ = 567109920.

The previous prime is 722520083. The next prime is 722520119. The reversal of 722520115 is 511025227.

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

It is not a de Polignac number, because 722520115 - 2⁵ = 722520083 is a prime.

It is a super-2 number, since 2×722520115² = 1044070633159226450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722520115.

It is not an unprimeable number, because it can be changed into a prime (722520119) 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, 1362981 + ... + 1363510.

It is an arithmetic number, because the mean of its divisors is an integer number (110422926).

Almost surely, 2^722520115 is an apocalyptic number.

722520115 is a deficient number, since it is larger than the sum of its proper divisors (160863293).

722520115 is a wasteful number, since it uses less digits than its factorization.

722520115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726549.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 722520115 is about 26879.7342806807. The cubic root of 722520115 is about 897.3254404552.

The spelling of 722520115 in words is "seven hundred twenty-two million, five hundred twenty thousand, one hundred fifteen".