1252555437 has 8 divisors (see below), whose sum is σ = 1908655936. Its totient is φ = 715745952.

The previous prime is 1252555433. The next prime is 1252555457. The reversal of 1252555437 is 7345552521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252555437 - 2² = 1252555433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1252555395 and 1252555404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252555433) 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, 29822728 + ... + 29822769.

It is an arithmetic number, because the mean of its divisors is an integer number (238581992).

Almost surely, 2^1252555437 is an apocalyptic number.

It is an amenable number.

1252555437 is a deficient number, since it is larger than the sum of its proper divisors (656100499).

1252555437 is an equidigital number, since it uses as much as digits as its factorization.

1252555437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59645507.

The product of its digits is 210000, while the sum is 39.

The square root of 1252555437 is about 35391.4599444555. The cubic root of 1252555437 is about 1077.9509149678.

The spelling of 1252555437 in words is "one billion, two hundred fifty-two million, five hundred fifty-five thousand, four hundred thirty-seven".