42651512 has 8 divisors (see below), whose sum is σ = 79971600. Its totient is φ = 21325752.

The previous prime is 42651509. The next prime is 42651517. The reversal of 42651512 is 21515624.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×42651512² = 3638302951772288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42651517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2665712 + ... + 2665727.

It is an arithmetic number, because the mean of its divisors is an integer number (9996450).

Almost surely, 2^42651512 is an apocalyptic number.

It is an amenable number.

42651512 is a deficient number, since it is larger than the sum of its proper divisors (37320088).

42651512 is a wasteful number, since it uses less digits than its factorization.

42651512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5331445 (or 5331441 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 42651512 is about 6530.8125068785. The cubic root of 42651512 is about 349.3908096805.

The spelling of 42651512 in words is "forty-two million, six hundred fifty-one thousand, five hundred twelve".