51103501025 has 12 divisors (see below), whose sum is σ = 63371204400. Its totient is φ = 40880953680.

The previous prime is 51103501021. The next prime is 51103501037. The reversal of 51103501025 is 52010530115.

It is a happy number.

It is not a de Polignac number, because 51103501025 - 2² = 51103501021 is a prime.

It is a super-2 number, since 2×51103501025² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51103501021) 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, 891686 + ... + 947264.

It is an arithmetic number, because the mean of its divisors is an integer number (5280933700).

Almost surely, 2^51103501025 is an apocalyptic number.

It is an amenable number.

51103501025 is a deficient number, since it is larger than the sum of its proper divisors (12267703375).

51103501025 is a wasteful number, since it uses less digits than its factorization.

51103501025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92368 (or 92363 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The spelling of 51103501025 in words is "fifty-one billion, one hundred three million, five hundred one thousand, twenty-five".