51411870 has 48 divisors (see below), whose sum is σ = 137292480. Its totient is φ = 13338432.

The previous prime is 51411869. The next prime is 51411889. The reversal of 51411870 is 7811415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4390 + ... + 11049.

It is an arithmetic number, because the mean of its divisors is an integer number (2860260).

Almost surely, 2^51411870 is an apocalyptic number.

51411870 is an abundant number, since it is smaller than the sum of its proper divisors (85880610).

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

51411870 is a wasteful number, since it uses less digits than its factorization.

51411870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15489 (or 15486 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 51411870 is about 7170.2071099795. The cubic root of 51411870 is about 371.8385962999.

The spelling of 51411870 in words is "fifty-one million, four hundred eleven thousand, eight hundred seventy".