51496494 has 32 divisors (see below), whose sum is σ = 122826240. Its totient is φ = 14073312.

The previous prime is 51496481. The next prime is 51496507. The reversal of 51496494 is 49469415.

It is an interprime number because it is at equal distance from previous prime (51496481) and next prime (51496507).

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 25689 + ... + 27620.

It is an arithmetic number, because the mean of its divisors is an integer number (3838320).

Almost surely, 2^51496494 is an apocalyptic number.

51496494 is an abundant number, since it is smaller than the sum of its proper divisors (71329746).

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

51496494 is a wasteful number, since it uses less digits than its factorization.

51496494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53344.

The product of its digits is 155520, while the sum is 42.

The square root of 51496494 is about 7176.1057684513. The cubic root of 51496494 is about 372.0425000582.

The spelling of 51496494 in words is "fifty-one million, four hundred ninety-six thousand, four hundred ninety-four".