51958455 has 16 divisors (see below), whose sum is σ = 83240160. Its totient is φ = 27675648.

The previous prime is 51958427. The next prime is 51958469. The reversal of 51958455 is 55485915.

It is a happy number.

It is not a de Polignac number, because 51958455 - 2⁷ = 51958327 is a prime.

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, 13419 + ... + 16851.

It is an arithmetic number, because the mean of its divisors is an integer number (5202510).

Almost surely, 2^51958455 is an apocalyptic number.

51958455 is a deficient number, since it is larger than the sum of its proper divisors (31281705).

51958455 is a wasteful number, since it uses less digits than its factorization.

51958455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450.

The product of its digits is 180000, while the sum is 42.

The square root of 51958455 is about 7208.2213478777. The cubic root of 51958455 is about 373.1516871619.

The spelling of 51958455 in words is "fifty-one million, nine hundred fifty-eight thousand, four hundred fifty-five".