51724026 has 12 divisors (see below), whose sum is σ = 112068762. Its totient is φ = 17241336.

The previous prime is 51724021. The next prime is 51724037. The reversal of 51724026 is 62042715.

It can be written as a sum of positive squares in only one way, i.e., 44156025 + 7568001 = 6645^2 + 2751^2 .

It is not an unprimeable number, because it can be changed into a prime (51724021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1436761 + ... + 1436796.

Almost surely, 2^51724026 is an apocalyptic number.

51724026 is an abundant number, since it is smaller than the sum of its proper divisors (60344736).

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

51724026 is a wasteful number, since it uses less digits than its factorization.

51724026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873565 (or 2873562 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 51724026 is about 7191.9417405872. The cubic root of 51724026 is about 372.5896389532.

The spelling of 51724026 in words is "fifty-one million, seven hundred twenty-four thousand, twenty-six".