51532719 has 16 divisors (see below), whose sum is σ = 81940992. Its totient is φ = 28166688.

The previous prime is 51532717. The next prime is 51532781. The reversal of 51532719 is 91723515.

It is not a de Polignac number, because 51532719 - 2¹ = 51532717 is a prime.

It is a super-2 number, since 2×51532719² = 5311242255065922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51532719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51532711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52864 + ... + 53829.

It is an arithmetic number, because the mean of its divisors is an integer number (5121312).

Almost surely, 2^51532719 is an apocalyptic number.

51532719 is a deficient number, since it is larger than the sum of its proper divisors (30408273).

51532719 is a wasteful number, since it uses less digits than its factorization.

51532719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106726.

The product of its digits is 9450, while the sum is 33.

The square root of 51532719 is about 7178.6293259925. The cubic root of 51532719 is about 372.1297168735.

The spelling of 51532719 in words is "fifty-one million, five hundred thirty-two thousand, seven hundred nineteen".