1252432551 has 16 divisors (see below), whose sum is σ = 1775745504. Its totient is φ = 782459904.

The previous prime is 1252432549. The next prime is 1252432553. The reversal of 1252432551 is 1552342521.

It is an interprime number because it is at equal distance from previous prime (1252432549) and next prime (1252432553).

It is not a de Polignac number, because 1252432551 - 2¹ = 1252432549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252432553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40816 + ... + 64581.

It is an arithmetic number, because the mean of its divisors is an integer number (110984094).

Almost surely, 2^1252432551 is an apocalyptic number.

1252432551 is a deficient number, since it is larger than the sum of its proper divisors (523312953).

1252432551 is a wasteful number, since it uses less digits than its factorization.

1252432551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105650.

The product of its digits is 12000, while the sum is 30.

The square root of 1252432551 is about 35389.7238050822. The cubic root of 1252432551 is about 1077.9156618619.

The spelling of 1252432551 in words is "one billion, two hundred fifty-two million, four hundred thirty-two thousand, five hundred fifty-one".