51260505 has 16 divisors (see below), whose sum is σ = 82380480. Its totient is φ = 27217728.

The previous prime is 51260497. The next prime is 51260507. The reversal of 51260505 is 50506215.

It is not a de Polignac number, because 51260505 - 2³ = 51260497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51260507) 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, 4027 + ... + 10896.

It is an arithmetic number, because the mean of its divisors is an integer number (5148780).

Almost surely, 2^51260505 is an apocalyptic number.

It is an amenable number.

51260505 is a deficient number, since it is larger than the sum of its proper divisors (31119975).

51260505 is a wasteful number, since it uses less digits than its factorization.

51260505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15160.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 51260505 is about 7159.6441950700. The cubic root of 51260505 is about 371.4733195946.

The spelling of 51260505 in words is "fifty-one million, two hundred sixty thousand, five hundred five".