62572721 has 4 divisors (see below), whose sum is σ = 62588772. Its totient is φ = 62556672.

The previous prime is 62572711. The next prime is 62572751. The reversal of 62572721 is 12727526.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4264225 + 58308496 = 2065^2 + 7636^2 .

It is a cyclic number.

It is not a de Polignac number, because 62572721 - 2¹⁴ = 62556337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (62572711) 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, 1985 + ... + 11361.

It is an arithmetic number, because the mean of its divisors is an integer number (15647193).

Almost surely, 2^62572721 is an apocalyptic number.

It is an amenable number.

62572721 is a deficient number, since it is larger than the sum of its proper divisors (16051).

62572721 is an equidigital number, since it uses as much as digits as its factorization.

62572721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16050.

The product of its digits is 11760, while the sum is 32.

The square root of 62572721 is about 7910.2920932163. The cubic root of 62572721 is about 397.0041198573.

The spelling of 62572721 in words is "sixty-two million, five hundred seventy-two thousand, seven hundred twenty-one".