51376403 has 12 divisors (see below), whose sum is σ = 56734944. Its totient is φ = 46248000.

The previous prime is 51376373. The next prime is 51376417. The reversal of 51376403 is 30467315.

It is not a de Polignac number, because 51376403 - 2¹⁴ = 51360019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51376483) 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, 20678 + ... + 23028.

It is an arithmetic number, because the mean of its divisors is an integer number (4727912).

Almost surely, 2^51376403 is an apocalyptic number.

51376403 is a deficient number, since it is larger than the sum of its proper divisors (5358541).

51376403 is a wasteful number, since it uses less digits than its factorization.

51376403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 51376403 is about 7167.7334632365. The cubic root of 51376403 is about 371.7530710877.

The spelling of 51376403 in words is "fifty-one million, three hundred seventy-six thousand, four hundred three".