51255150777776 has 20 divisors (see below), whose sum is σ = 108334750507944. Its totient is φ = 23297795808000.

The previous prime is 51255150777689. The next prime is 51255150777863. The reversal of 51255150777776 is 67777705155215.

It is an interprime number because it is at equal distance from previous prime (51255150777689) and next prime (51255150777863).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145611223625 + ... + 145611223976.

Almost surely, 2^{51255150777776} is an apocalyptic number.

It is an amenable number.

51255150777776 is an abundant number, since it is smaller than the sum of its proper divisors (57079599730168).

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

51255150777776 is a wasteful number, since it uses less digits than its factorization.

51255150777776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291222447620 (or 291222447614 counting only the distinct ones).

The product of its (nonzero) digits is 126052500, while the sum is 65.

The spelling of 51255150777776 in words is "fifty-one trillion, two hundred fifty-five billion, one hundred fifty million, seven hundred seventy-seven thousand, seven hundred seventy-six".