51061495 has 16 divisors (see below), whose sum is σ = 66004992. Its totient is φ = 37810080.

The previous prime is 51061487. The next prime is 51061499. The reversal of 51061495 is 59416015.

It is not a de Polignac number, because 51061495 - 2³ = 51061487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51061499) 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, 3597 + ... + 10726.

It is an arithmetic number, because the mean of its divisors is an integer number (4125312).

Almost surely, 2^51061495 is an apocalyptic number.

51061495 is a deficient number, since it is larger than the sum of its proper divisors (14943497).

51061495 is a wasteful number, since it uses less digits than its factorization.

51061495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14382.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 51061495 is about 7145.7326426336. The cubic root of 51061495 is about 370.9919692733.

The spelling of 51061495 in words is "fifty-one million, sixty-one thousand, four hundred ninety-five".