51537005 has 16 divisors (see below), whose sum is σ = 68154240. Its totient is φ = 37171008.

The previous prime is 51537001. The next prime is 51537019. The reversal of 51537005 is 50073515.

It is a cyclic number.

It is not a de Polignac number, because 51537005 - 2² = 51537001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51537001) 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, 6425 + ... + 12014.

It is an arithmetic number, because the mean of its divisors is an integer number (4259640).

Almost surely, 2^51537005 is an apocalyptic number.

It is an amenable number.

51537005 is a deficient number, since it is larger than the sum of its proper divisors (16617235).

51537005 is a wasteful number, since it uses less digits than its factorization.

51537005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18500.

The product of its (nonzero) digits is 2625, while the sum is 26.

The square root of 51537005 is about 7178.9278447412. The cubic root of 51537005 is about 372.1400333209.

The spelling of 51537005 in words is "fifty-one million, five hundred thirty-seven thousand, five".