425644101 has 24 divisors (see below), whose sum is σ = 622958336. Its totient is φ = 280026720.

The previous prime is 425644097. The next prime is 425644103. The reversal of 425644101 is 101446524.

425644101 is a `hidden beast` number, since 4 + 2 + 5 + 644 + 10 + 1 = 666.

It is not a de Polignac number, because 425644101 - 2² = 425644097 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425644103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 345156 + ... + 346386.

Almost surely, 2^425644101 is an apocalyptic number.

It is an amenable number.

425644101 is a deficient number, since it is larger than the sum of its proper divisors (197314235).

425644101 is a wasteful number, since it uses less digits than its factorization.

425644101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713 (or 1710 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 425644101 is about 20631.1439576190. The cubic root of 425644101 is about 752.2269225436.

It can be divided in two parts, 42564 and 4101, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 425644101 in words is "four hundred twenty-five million, six hundred forty-four thousand, one hundred one".