51055455 has 32 divisors (see below), whose sum is σ = 91300608. Its totient is φ = 24147200.

The previous prime is 51055441. The next prime is 51055493. The reversal of 51055455 is 55455015.

It is not a de Polignac number, because 51055455 - 2⁴ = 51055439 is a prime.

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, 2992 + ... + 10538.

It is an arithmetic number, because the mean of its divisors is an integer number (2853144).

Almost surely, 2^51055455 is an apocalyptic number.

51055455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51055455 is a deficient number, since it is larger than the sum of its proper divisors (40245153).

51055455 is a wasteful number, since it uses less digits than its factorization.

51055455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7607.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 51055455 is about 7145.3100002729. The cubic root of 51055455 is about 370.9773406387.

The spelling of 51055455 in words is "fifty-one million, fifty-five thousand, four hundred fifty-five".