425520040550 has 36 divisors (see below), whose sum is σ = 869959910148. Its totient is φ = 154734558000.

The previous prime is 425520040541. The next prime is 425520040573. The reversal of 425520040550 is 55040025524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 35160896 + ... + 35172995.

Almost surely, 2^425520040550 is an apocalyptic number.

425520040550 is an abundant number, since it is smaller than the sum of its proper divisors (444439869598).

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

425520040550 is a wasteful number, since it uses less digits than its factorization.

425520040550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70333925 (or 70333909 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The spelling of 425520040550 in words is "four hundred twenty-five billion, five hundred twenty million, forty thousand, five hundred fifty".