51040455 has 8 divisors (see below), whose sum is σ = 81664752. Its totient is φ = 27221568.

The previous prime is 51040433. The next prime is 51040471. The reversal of 51040455 is 55404015.

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

It is not a de Polignac number, because 51040455 - 2¹³ = 51032263 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1701334 + ... + 1701363.

It is an arithmetic number, because the mean of its divisors is an integer number (10208094).

Almost surely, 2^51040455 is an apocalyptic number.

51040455 is a deficient number, since it is larger than the sum of its proper divisors (30624297).

51040455 is a wasteful number, since it uses less digits than its factorization.

51040455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402705.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 51040455 is about 7144.2602836123. The cubic root of 51040455 is about 370.9410062570.

The spelling of 51040455 in words is "fifty-one million, forty thousand, four hundred fifty-five".