51151002 has 48 divisors (see below), whose sum is σ = 125281440. Its totient is φ = 13843872.

The previous prime is 51150941. The next prime is 51151007. The reversal of 51151002 is 20015115.

It is not an unprimeable number, because it can be changed into a prime (51151007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1008 + ... + 10164.

It is an arithmetic number, because the mean of its divisors is an integer number (2610030).

Almost surely, 2^51151002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51151002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62640720).

51151002 is an abundant number, since it is smaller than the sum of its proper divisors (74130438).

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

51151002 is a wasteful number, since it uses less digits than its factorization.

51151002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9195 (or 9188 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 51151002 is about 7151.9928691240. The cubic root of 51151002 is about 371.2086165029.

Adding to 51151002 its reverse (20015115), we get a palindrome (71166117).

The spelling of 51151002 in words is "fifty-one million, one hundred fifty-one thousand, two".