51495474 has 16 divisors (see below), whose sum is σ = 106542720. Its totient is φ = 16573200.

The previous prime is 51495473. The next prime is 51495481. The reversal of 51495474 is 47459415.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51495473) 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, 147802 + ... + 148149.

It is an arithmetic number, because the mean of its divisors is an integer number (6658920).

Almost surely, 2^51495474 is an apocalyptic number.

51495474 is an abundant number, since it is smaller than the sum of its proper divisors (55047246).

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

51495474 is a wasteful number, since it uses less digits than its factorization.

51495474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295985.

The product of its digits is 100800, while the sum is 39.

The square root of 51495474 is about 7176.0346989128. The cubic root of 51495474 is about 372.0400436718.

The spelling of 51495474 in words is "fifty-one million, four hundred ninety-five thousand, four hundred seventy-four".