51132534 has 16 divisors (see below), whose sum is σ = 107647680. Its totient is φ = 16147080.

The previous prime is 51132533. The next prime is 51132541. The reversal of 51132534 is 43523115.

It is a super-2 number, since 2×51132534² = 5229072066522312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51132533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224152 + ... + 224379.

It is an arithmetic number, because the mean of its divisors is an integer number (6727980).

Almost surely, 2^51132534 is an apocalyptic number.

51132534 is an abundant number, since it is smaller than the sum of its proper divisors (56515146).

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

51132534 is a wasteful number, since it uses less digits than its factorization.

51132534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448555.

The product of its digits is 1800, while the sum is 24.

The square root of 51132534 is about 7150.7016438948. The cubic root of 51132534 is about 371.1639363358.

Adding to 51132534 its reverse (43523115), we get a palindrome (94655649).

The spelling of 51132534 in words is "fifty-one million, one hundred thirty-two thousand, five hundred thirty-four".