51902954 has 8 divisors (see below), whose sum is σ = 78657348. Its totient is φ = 25683840.

The previous prime is 51902947. The next prime is 51902969. The reversal of 51902954 is 45920915.

It can be written as a sum of positive squares in 2 ways, for example, as 51051025 + 851929 = 7145^2 + 923^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51902954² = 5387833267852232, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133577 + ... + 133964.

Almost surely, 2^51902954 is an apocalyptic number.

51902954 is a deficient number, since it is larger than the sum of its proper divisors (26754394).

51902954 is a wasteful number, since it uses less digits than its factorization.

51902954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267640.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 51902954 is about 7204.3704790911. The cubic root of 51902954 is about 373.0187753944.

The spelling of 51902954 in words is "fifty-one million, nine hundred two thousand, nine hundred fifty-four".