51100493 has 12 divisors (see below), whose sum is σ = 53748864. Its totient is φ = 48531600.

The previous prime is 51100471. The next prime is 51100501. The reversal of 51100493 is 39400115.

It is a happy number.

It is not a de Polignac number, because 51100493 - 2⁶ = 51100429 is a prime.

It is a super-2 number, since 2×51100493² = 5222520769686098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100433) 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, 115130 + ... + 115572.

It is an arithmetic number, because the mean of its divisors is an integer number (4479072).

Almost surely, 2^51100493 is an apocalyptic number.

It is an amenable number.

51100493 is a deficient number, since it is larger than the sum of its proper divisors (2648371).

51100493 is an equidigital number, since it uses as much as digits as its factorization.

51100493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 51100493 is about 7148.4608832951. The cubic root of 51100493 is about 371.0863930858.

The spelling of 51100493 in words is "fifty-one million, one hundred thousand, four hundred ninety-three".