51495302 has 4 divisors (see below), whose sum is σ = 77242956. Its totient is φ = 25747650.

The previous prime is 51495293. The next prime is 51495307. The reversal of 51495302 is 20359415.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×51495302² = 5303532256142408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51495307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12873824 + ... + 12873827.

It is an arithmetic number, because the mean of its divisors is an integer number (19310739).

Almost surely, 2^51495302 is an apocalyptic number.

51495302 is a deficient number, since it is larger than the sum of its proper divisors (25747654).

51495302 is a wasteful number, since it uses less digits than its factorization.

51495302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25747653.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 51495302 is about 7176.0227145683. The cubic root of 51495302 is about 372.0396294544.

The spelling of 51495302 in words is "fifty-one million, four hundred ninety-five thousand, three hundred two".