51428597 has 16 divisors (see below), whose sum is σ = 58804224. Its totient is φ = 44550000.

The previous prime is 51428593. The next prime is 51428609. The reversal of 51428597 is 79582415.

It is not a de Polignac number, because 51428597 - 2² = 51428593 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51428593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21722 + ... + 23972.

It is an arithmetic number, because the mean of its divisors is an integer number (3675264).

Almost surely, 2^51428597 is an apocalyptic number.

It is an amenable number.

51428597 is a deficient number, since it is larger than the sum of its proper divisors (7375627).

51428597 is a wasteful number, since it uses less digits than its factorization.

51428597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360.

The product of its digits is 100800, while the sum is 41.

The square root of 51428597 is about 7171.3734388888. The cubic root of 51428597 is about 371.8789181801.

It can be divided in two parts, 51428 and 597, that added together give a palindrome (52025).

The spelling of 51428597 in words is "fifty-one million, four hundred twenty-eight thousand, five hundred ninety-seven".