5251512 has 32 divisors (see below), whose sum is σ = 15004800. Its totient is φ = 1500384.

The previous prime is 5251507. The next prime is 5251513. The reversal of 5251512 is 2151525.

It is a super-2 number, since 2×5251512² = 55156756572288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15462 + ... + 15797.

It is an arithmetic number, because the mean of its divisors is an integer number (468900).

Almost surely, 2^5251512 is an apocalyptic number.

It is an amenable number.

5251512 is an abundant number, since it is smaller than the sum of its proper divisors (9753288).

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

5251512 is a wasteful number, since it uses less digits than its factorization.

5251512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31275 (or 31271 counting only the distinct ones).

The product of its digits is 500, while the sum is 21.

The square root of 5251512 is about 2291.6177691753. The cubic root of 5251512 is about 173.8180155707.

The spelling of 5251512 in words is "five million, two hundred fifty-one thousand, five hundred twelve".