51546072 has 16 divisors (see below), whose sum is σ = 128865240. Its totient is φ = 17182016.

The previous prime is 51546043. The next prime is 51546101. The reversal of 51546072 is 27064515.

It is an interprime number because it is at equal distance from previous prime (51546043) and next prime (51546101).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073853 + ... + 1073900.

Almost surely, 2^51546072 is an apocalyptic number.

It is an amenable number.

51546072 is an abundant number, since it is smaller than the sum of its proper divisors (77319168).

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

51546072 is a wasteful number, since it uses less digits than its factorization.

51546072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147762 (or 2147758 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 51546072 is about 7179.5593179526. The cubic root of 51546072 is about 372.1618558012.

The spelling of 51546072 in words is "fifty-one million, five hundred forty-six thousand, seventy-two".