51025455 has 24 divisors (see below), whose sum is σ = 95248608. Its totient is φ = 25119936.

The previous prime is 51025453. The next prime is 51025493. The reversal of 51025455 is 55452015.

51025455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51025455 - 2¹ = 51025453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43027 + ... + 44196.

It is an arithmetic number, because the mean of its divisors is an integer number (3968692).

Almost surely, 2^51025455 is an apocalyptic number.

51025455 is a deficient number, since it is larger than the sum of its proper divisors (44223153).

51025455 is a wasteful number, since it uses less digits than its factorization.

51025455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87247 (or 87244 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 51025455 is about 7143.2104126926. The cubic root of 51025455 is about 370.9046647560.

The spelling of 51025455 in words is "fifty-one million, twenty-five thousand, four hundred fifty-five".