51002243154 has 24 divisors (see below), whose sum is σ = 113074742352. Its totient is φ = 16605381240.

The previous prime is 51002243129. The next prime is 51002243179. The reversal of 51002243154 is 45134220015.

It is an interprime number because it is at equal distance from previous prime (51002243129) and next prime (51002243179).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32946412 + ... + 32947959.

It is an arithmetic number, because the mean of its divisors is an integer number (4711447598).

Almost surely, 2^51002243154 is an apocalyptic number.

51002243154 is an abundant number, since it is smaller than the sum of its proper divisors (62072499198).

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

51002243154 is a wasteful number, since it uses less digits than its factorization.

51002243154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65894422 (or 65894419 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 51002243154 its reverse (45134220015), we get a palindrome (96136463169).

The spelling of 51002243154 in words is "fifty-one billion, two million, two hundred forty-three thousand, one hundred fifty-four".