3725555634 has 40 divisors (see below), whose sum is σ = 8617306368. Its totient is φ = 1201790520.

The previous prime is 3725555633. The next prime is 3725555653. The reversal of 3725555634 is 4365555273.

3725555634 is a `hidden beast` number, since 3 + 7 + 2 + 5 + 5 + 5 + 5 + 634 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 3725555634.

It is not an unprimeable number, because it can be changed into a prime (3725555633) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 365902 + ... + 375945.

Almost surely, 2^3725555634 is an apocalyptic number.

3725555634 is an abundant number, since it is smaller than the sum of its proper divisors (4891750734).

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

3725555634 is a wasteful number, since it uses less digits than its factorization.

3725555634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741892 (or 741883 counting only the distinct ones).

The product of its digits is 1890000, while the sum is 45.

The square root of 3725555634 is about 61037.3298400249. The cubic root of 3725555634 is about 1550.2331434246.

The spelling of 3725555634 in words is "three billion, seven hundred twenty-five million, five hundred fifty-five thousand, six hundred thirty-four".