51853464 has 48 divisors (see below), whose sum is σ = 151242000. Its totient is φ = 15954624.

The previous prime is 51853453. The next prime is 51853469. The reversal of 51853464 is 46435815.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51853469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26764 + ... + 28635.

It is an arithmetic number, because the mean of its divisors is an integer number (3150875).

Almost surely, 2^51853464 is an apocalyptic number.

It is an amenable number.

51853464 is an abundant number, since it is smaller than the sum of its proper divisors (99388536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51853464 is a wasteful number, since it uses less digits than its factorization.

51853464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55424 (or 55417 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 51853464 is about 7200.9349392978. The cubic root of 51853464 is about 372.9001786135.

It can be divided in two parts, 5185 and 3464, that added together give a square (8649 = 93²).

The spelling of 51853464 in words is "fifty-one million, eight hundred fifty-three thousand, four hundred sixty-four".