51134370787025 has 6 divisors (see below), whose sum is σ = 63406619775942. Its totient is φ = 40907496629600.

The previous prime is 51134370787007. The next prime is 51134370787037. The reversal of 51134370787025 is 52078707343115.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 677684582656 + 50456686204369 = 823216^2 + 7103287^2 .

It is a de Polignac number, because none of the positive numbers 2^k-51134370787025 is a prime.

It is a super-2 number, since 2×51134370787025² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1022687415716 + ... + 1022687415765.

It is an arithmetic number, because the mean of its divisors is an integer number (10567769962657).

Almost surely, 2^{51134370787025} is an apocalyptic number.

It is an amenable number.

51134370787025 is a deficient number, since it is larger than the sum of its proper divisors (12272248988917).

51134370787025 is a wasteful number, since it uses less digits than its factorization.

51134370787025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045374831491 (or 2045374831486 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 53.

The spelling of 51134370787025 in words is "fifty-one trillion, one hundred thirty-four billion, three hundred seventy million, seven hundred eighty-seven thousand, twenty-five".