51903485 has 16 divisors (see below), whose sum is σ = 63504000. Its totient is φ = 40716480.

The previous prime is 51903457. The next prime is 51903487. The reversal of 51903485 is 58430915.

It is not a de Polignac number, because 51903485 - 2¹² = 51899389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51903487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103766 + ... + 104264.

It is an arithmetic number, because the mean of its divisors is an integer number (3969000).

Almost surely, 2^51903485 is an apocalyptic number.

It is an amenable number.

51903485 is a deficient number, since it is larger than the sum of its proper divisors (11600515).

51903485 is a wasteful number, since it uses less digits than its factorization.

51903485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 51903485 is about 7204.4073316269. The cubic root of 51903485 is about 373.0200474626.

The spelling of 51903485 in words is "fifty-one million, nine hundred three thousand, four hundred eighty-five".