51541536 has 24 divisors (see below), whose sum is σ = 135296784. Its totient is φ = 17180480.

The previous prime is 51541519. The next prime is 51541537. The reversal of 51541536 is 63514515.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (51541537) 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, 268350 + ... + 268541.

It is an arithmetic number, because the mean of its divisors is an integer number (5637366).

Almost surely, 2^51541536 is an apocalyptic number.

It is an amenable number.

51541536 is an abundant number, since it is smaller than the sum of its proper divisors (83755248).

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

51541536 is a wasteful number, since it uses less digits than its factorization.

51541536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536904 (or 536896 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 51541536 is about 7179.2434141767. The cubic root of 51541536 is about 372.1509388639.

The spelling of 51541536 in words is "fifty-one million, five hundred forty-one thousand, five hundred thirty-six".