72514957 has 4 divisors (see below), whose sum is σ = 72614620. Its totient is φ = 72415296.

The previous prime is 72514933. The next prime is 72514973. The reversal of 72514957 is 75941527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75941527 = 53 ⋅1432859.

It can be written as a sum of positive squares in 2 ways, for example, as 44435556 + 28079401 = 6666^2 + 5299^2 .

It is a cyclic number.

It is not a de Polignac number, because 72514957 - 2¹⁹ = 71990669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72514157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48732 + ... + 50197.

It is an arithmetic number, because the mean of its divisors is an integer number (18153655).

Almost surely, 2^72514957 is an apocalyptic number.

It is an amenable number.

72514957 is a deficient number, since it is larger than the sum of its proper divisors (99663).

72514957 is an equidigital number, since it uses as much as digits as its factorization.

72514957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99662.

The product of its digits is 88200, while the sum is 40.

The square root of 72514957 is about 8515.5714429508. The cubic root of 72514957 is about 417.0062184336.

The spelling of 72514957 in words is "seventy-two million, five hundred fourteen thousand, nine hundred fifty-seven".