425691542 has 12 divisors (see below), whose sum is σ = 672345420. Its totient is φ = 201583116.

The previous prime is 425691503. The next prime is 425691557. The reversal of 425691542 is 245196524.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 425691496 and 425691505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125513 + ... + 128859.

It is an arithmetic number, because the mean of its divisors is an integer number (56028785).

Almost surely, 2^425691542 is an apocalyptic number.

425691542 is a deficient number, since it is larger than the sum of its proper divisors (246653878).

425691542 is an frugal number, since it uses more digits than its factorization.

425691542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715 (or 3368 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 425691542 is about 20632.2936679372. The cubic root of 425691542 is about 752.2548684821.

Multiplying 425691542 by its sum of digits (38), we get a square (16176278596 = 127186²).

425691542 divided by its sum of digits (38) gives a square (11202409 = 3347²).

The spelling of 425691542 in words is "four hundred twenty-five million, six hundred ninety-one thousand, five hundred forty-two".