51476540 has 12 divisors (see below), whose sum is σ = 108100776. Its totient is φ = 20590608.

The previous prime is 51476539. The next prime is 51476543. The reversal of 51476540 is 4567415.

It is a junction number, because it is equal to n+sod(n) for n = 51476497 and 51476506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51476543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286894 + ... + 1286933.

It is an arithmetic number, because the mean of its divisors is an integer number (9008398).

Almost surely, 2^51476540 is an apocalyptic number.

It is an amenable number.

51476540 is an abundant number, since it is smaller than the sum of its proper divisors (56624236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51476540 is a wasteful number, since it uses less digits than its factorization.

51476540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573836 (or 2573834 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 51476540 is about 7174.7153253631. The cubic root of 51476540 is about 371.9944405073.

The spelling of 51476540 in words is "fifty-one million, four hundred seventy-six thousand, five hundred forty".