52151607 has 10 divisors (see below), whose sum is σ = 77905608. Its totient is φ = 34767684.

The previous prime is 52151591. The next prime is 52151669. The reversal of 52151607 is 70615125.

52151607 is a `hidden beast` number, since 5 + 2 + 1 + 51 + 607 = 666.

It is not a de Polignac number, because 52151607 - 2⁴ = 52151591 is a prime.

It is a super-2 number, since 2×52151607² = 5439580225364898, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52151107) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 321843 + ... + 322004.

Almost surely, 2^52151607 is an apocalyptic number.

52151607 is a deficient number, since it is larger than the sum of its proper divisors (25754001).

52151607 is an equidigital number, since it uses as much as digits as its factorization.

52151607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643859 (or 643850 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 52151607 is about 7221.6069541342. The cubic root of 52151607 is about 373.6135039948.

The spelling of 52151607 in words is "fifty-two million, one hundred fifty-one thousand, six hundred seven".