51154002 has 24 divisors (see below), whose sum is σ = 111421440. Its totient is φ = 16960920.

The previous prime is 51153989. The next prime is 51154007. The reversal of 51154002 is 20045115.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (51154007) 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, 4002 + ... + 10877.

It is an arithmetic number, because the mean of its divisors is an integer number (4642560).

Almost surely, 2^51154002 is an apocalyptic number.

51154002 is an abundant number, since it is smaller than the sum of its proper divisors (60267438).

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

51154002 is a wasteful number, since it uses less digits than its factorization.

51154002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15078 (or 15075 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 51154002 is about 7152.2025978016. The cubic root of 51154002 is about 371.2158734743.

Adding to 51154002 its reverse (20045115), we get a palindrome (71199117).

The spelling of 51154002 in words is "fifty-one million, one hundred fifty-four thousand, two".