51001165254 has 32 divisors (see below), whose sum is σ = 109993139424. Its totient is φ = 15672026880.

The previous prime is 51001165253. The next prime is 51001165307. The reversal of 51001165254 is 45256110015.

It is a super-2 number, since 2×51001165254² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51001165253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370249 + ... + 488964.

It is an arithmetic number, because the mean of its divisors is an integer number (3437285607).

Almost surely, 2^51001165254 is an apocalyptic number.

51001165254 is an abundant number, since it is smaller than the sum of its proper divisors (58991974170).

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

51001165254 is a wasteful number, since it uses less digits than its factorization.

51001165254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859992.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 51001165254 its reverse (45256110015), we get a palindrome (96257275269).

The spelling of 51001165254 in words is "fifty-one billion, one million, one hundred sixty-five thousand, two hundred fifty-four".