72125510 has 8 divisors (see below), whose sum is σ = 129825936. Its totient is φ = 28850200.

The previous prime is 72125507. The next prime is 72125531. The reversal of 72125510 is 1552127.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3606266 + ... + 3606285.

It is an arithmetic number, because the mean of its divisors is an integer number (16228242).

Almost surely, 2^72125510 is an apocalyptic number.

72125510 is a deficient number, since it is larger than the sum of its proper divisors (57700426).

72125510 is a wasteful number, since it uses less digits than its factorization.

72125510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212558.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 72125510 is about 8492.6739016637. The cubic root of 72125510 is about 416.2583569882.

Adding to 72125510 its reverse (1552127), we get a palindrome (73677637).

The spelling of 72125510 in words is "seventy-two million, one hundred twenty-five thousand, five hundred ten".