51537773 has 8 divisors (see below), whose sum is σ = 58944192. Its totient is φ = 44142336.

The previous prime is 51537769. The next prime is 51537797. The reversal of 51537773 is 37773515.

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

It is not a de Polignac number, because 51537773 - 2² = 51537769 is a prime.

It is a super-2 number, since 2×51537773² = 5312284091599058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51537713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14861 + ... + 17997.

It is an arithmetic number, because the mean of its divisors is an integer number (7368024).

Almost surely, 2^51537773 is an apocalyptic number.

It is an amenable number.

51537773 is a deficient number, since it is larger than the sum of its proper divisors (7406419).

51537773 is a wasteful number, since it uses less digits than its factorization.

51537773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491.

The product of its digits is 77175, while the sum is 38.

The square root of 51537773 is about 7178.9813344234. The cubic root of 51537773 is about 372.1418818446.

It can be divided in two parts, 51 and 537773, that added together give a 5-th power (537824 = 14⁵).

The spelling of 51537773 in words is "fifty-one million, five hundred thirty-seven thousand, seven hundred seventy-three".