51436542 has 32 divisors (see below), whose sum is σ = 105127200. Its totient is φ = 16773120.

The previous prime is 51436537. The next prime is 51436559. The reversal of 51436542 is 24563415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114334 + ... + 114782.

It is an arithmetic number, because the mean of its divisors is an integer number (3285225).

Almost surely, 2^51436542 is an apocalyptic number.

51436542 is an abundant number, since it is smaller than the sum of its proper divisors (53690658).

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

51436542 is a wasteful number, since it uses less digits than its factorization.

51436542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828.

The product of its digits is 14400, while the sum is 30.

The square root of 51436542 is about 7171.9273560180. The cubic root of 51436542 is about 371.8980672272.

Adding to 51436542 its reverse (24563415), we get a palindrome (75999957).

The spelling of 51436542 in words is "fifty-one million, four hundred thirty-six thousand, five hundred forty-two".