51019572 has 12 divisors (see below), whose sum is σ = 119045696. Its totient is φ = 17006520.

The previous prime is 51019571. The next prime is 51019609. The reversal of 51019572 is 27591015.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51019571) 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, 2125804 + ... + 2125827.

Almost surely, 2^51019572 is an apocalyptic number.

It is an amenable number.

51019572 is an abundant number, since it is smaller than the sum of its proper divisors (68026124).

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

51019572 is a wasteful number, since it uses less digits than its factorization.

51019572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251638 (or 4251636 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 51019572 is about 7142.7986111888. The cubic root of 51019572 is about 370.8904096748.

The spelling of 51019572 in words is "fifty-one million, nineteen thousand, five hundred seventy-two".