51913461 has 16 divisors (see below), whose sum is σ = 76477824. Its totient is φ = 31156224.

The previous prime is 51913457. The next prime is 51913469. The reversal of 51913461 is 16431915.

It is not a de Polignac number, because 51913461 - 2² = 51913457 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51913469) 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, 20956 + ... + 23301.

It is an arithmetic number, because the mean of its divisors is an integer number (4779864).

Almost surely, 2^51913461 is an apocalyptic number.

51913461 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

51913461 is a deficient number, since it is larger than the sum of its proper divisors (24564363).

51913461 is a wasteful number, since it uses less digits than its factorization.

51913461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44300.

The product of its digits is 3240, while the sum is 30.

The square root of 51913461 is about 7205.0996523296. The cubic root of 51913461 is about 373.0439444424.

The spelling of 51913461 in words is "fifty-one million, nine hundred thirteen thousand, four hundred sixty-one".