51125002 has 8 divisors (see below), whose sum is σ = 78319296. Its totient is φ = 25018572.

The previous prime is 51124981. The next prime is 51125003. The reversal of 51125002 is 20052115.

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

It is a super-2 number, since 2×51125002² = 5227531659000008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51125003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271848 + ... + 272035.

It is an arithmetic number, because the mean of its divisors is an integer number (9789912).

Almost surely, 2^51125002 is an apocalyptic number.

51125002 is a deficient number, since it is larger than the sum of its proper divisors (27194294).

51125002 is a wasteful number, since it uses less digits than its factorization.

51125002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543932.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 51125002 is about 7150.1749628943. The cubic root of 51125002 is about 371.1457108615.

Adding to 51125002 its reverse (20052115), we get a palindrome (71177117).

The spelling of 51125002 in words is "fifty-one million, one hundred twenty-five thousand, two".