51153760 has 48 divisors (see below), whose sum is σ = 138118176. Its totient is φ = 17538048.

The previous prime is 51153749. The next prime is 51153787. The reversal of 51153760 is 6735115.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21717 + ... + 23956.

It is an arithmetic number, because the mean of its divisors is an integer number (2877462).

Almost surely, 2^51153760 is an apocalyptic number.

It is an amenable number.

51153760 is an abundant number, since it is smaller than the sum of its proper divisors (86964416).

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

51153760 is a wasteful number, since it uses less digits than its factorization.

51153760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45695 (or 45687 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 51153760 is about 7152.1856799163. The cubic root of 51153760 is about 371.2152880891.

Adding to 51153760 its reverse (6735115), we get a palindrome (57888875).

The spelling of 51153760 in words is "fifty-one million, one hundred fifty-three thousand, seven hundred sixty".