51402254700 has 36 divisors (see below), whose sum is σ = 148723857800. Its totient is φ = 13707267840.

The previous prime is 51402254639. The next prime is 51402254711. The reversal of 51402254700 is 745220415.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 85670125 + ... + 85670724.

Almost surely, 2^51402254700 is an apocalyptic number.

51402254700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51402254700 is an abundant number, since it is smaller than the sum of its proper divisors (97321603100).

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

51402254700 is a wasteful number, since it uses less digits than its factorization.

51402254700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171340866 (or 171340859 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The spelling of 51402254700 in words is "fifty-one billion, four hundred two million, two hundred fifty-four thousand, seven hundred".