425150661 has 16 divisors (see below), whose sum is σ = 615286784. Its totient is φ = 259568064.

The previous prime is 425150659. The next prime is 425150723. The reversal of 425150661 is 166051524.

It is not a de Polignac number, because 425150661 - 2¹ = 425150659 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 (425150611) 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, 37966 + ... + 47871.

It is an arithmetic number, because the mean of its divisors is an integer number (38455424).

Almost surely, 2^425150661 is an apocalyptic number.

It is an amenable number.

425150661 is a deficient number, since it is larger than the sum of its proper divisors (190136123).

425150661 is a wasteful number, since it uses less digits than its factorization.

425150661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85980.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 425150661 is about 20619.1818702877. The cubic root of 425150661 is about 751.9361300110.

The spelling of 425150661 in words is "four hundred twenty-five million, one hundred fifty thousand, six hundred sixty-one".