51415445803 has 12 divisors (see below), whose sum is σ = 54254283408. Its totient is φ = 48705806240.

The previous prime is 51415445797. The next prime is 51415445819. The reversal of 51415445803 is 30854451415.

It is a de Polignac number, because none of the positive numbers 2^k-51415445803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51415445603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 532183 + ... + 621328.

It is an arithmetic number, because the mean of its divisors is an integer number (4521190284).

Almost surely, 2^51415445803 is an apocalyptic number.

51415445803 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

51415445803 is a deficient number, since it is larger than the sum of its proper divisors (2838837605).

51415445803 is a wasteful number, since it uses less digits than its factorization.

51415445803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153622 (or 1153593 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 51415445803 in words is "fifty-one billion, four hundred fifteen million, four hundred forty-five thousand, eight hundred three".