51055005 has 32 divisors (see below), whose sum is σ = 85209984. Its totient is φ = 26078976.

The previous prime is 51054989. The next prime is 51055013. The reversal of 51055005 is 50055015.

It is not a de Polignac number, because 51055005 - 2⁴ = 51054989 is a prime.

It is a super-2 number, since 2×51055005² = 5213227071100050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36499 + ... + 37871.

It is an arithmetic number, because the mean of its divisors is an integer number (2662812).

Almost surely, 2^51055005 is an apocalyptic number.

It is an amenable number.

51055005 is a deficient number, since it is larger than the sum of its proper divisors (34154979).

51055005 is a wasteful number, since it uses less digits than its factorization.

51055005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485.

The product of its (nonzero) digits is 625, while the sum is 21.

The square root of 51055005 is about 7145.2785110169. The cubic root of 51055005 is about 370.9762507108.

The spelling of 51055005 in words is "fifty-one million, fifty-five thousand, five".