425135253437 has 4 divisors (see below), whose sum is σ = 435022119840. Its totient is φ = 415248387036.

The previous prime is 425135253401. The next prime is 425135253449. The reversal of 425135253437 is 734352531524.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 425135253437 - 2¹⁴ = 425135237053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425135223437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4943433137 + ... + 4943433222.

It is an arithmetic number, because the mean of its divisors is an integer number (108755529960).

Almost surely, 2^425135253437 is an apocalyptic number.

It is an amenable number.

425135253437 is a deficient number, since it is larger than the sum of its proper divisors (9886866403).

425135253437 is an equidigital number, since it uses as much as digits as its factorization.

425135253437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9886866402.

The product of its digits is 1512000, while the sum is 44.

The spelling of 425135253437 in words is "four hundred twenty-five billion, one hundred thirty-five million, two hundred fifty-three thousand, four hundred thirty-seven".