51402294 has 12 divisors (see below), whose sum is σ = 111371676. Its totient is φ = 17134092.

The previous prime is 51402289. The next prime is 51402311. The reversal of 51402294 is 49220415.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1427824 + ... + 1427859.

It is an arithmetic number, because the mean of its divisors is an integer number (9280973).

Almost surely, 2^51402294 is an apocalyptic number.

51402294 is an abundant number, since it is smaller than the sum of its proper divisors (59969382).

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

51402294 is a wasteful number, since it uses less digits than its factorization.

51402294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855691 (or 2855688 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 51402294 is about 7169.5393157441. The cubic root of 51402294 is about 371.8155085870.

The spelling of 51402294 in words is "fifty-one million, four hundred two thousand, two hundred ninety-four".