51899403 has 8 divisors (see below), whose sum is σ = 69697600. Its totient is φ = 34350408.

The previous prime is 51899401. The next prime is 51899411. The reversal of 51899403 is 30499815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51899403 - 2¹ = 51899401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51899401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61813 + ... + 62646.

It is an arithmetic number, because the mean of its divisors is an integer number (8712200).

Almost surely, 2^51899403 is an apocalyptic number.

51899403 is a deficient number, since it is larger than the sum of its proper divisors (17798197).

51899403 is a wasteful number, since it uses less digits than its factorization.

51899403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124601.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 51899403 is about 7204.1240272499. The cubic root of 51899403 is about 373.0102683649.

The spelling of 51899403 in words is "fifty-one million, eight hundred ninety-nine thousand, four hundred three".