25753453772 has 6 divisors (see below), whose sum is σ = 45068544108. Its totient is φ = 12876726884.

The previous prime is 25753453757. The next prime is 25753453777. The reversal of 25753453772 is 27735435752.

It is a self number, because there is not a number n which added to its sum of digits gives 25753453772.

It is not an unprimeable number, because it can be changed into a prime (25753453777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3219181718 + ... + 3219181725.

It is an arithmetic number, because the mean of its divisors is an integer number (7511424018).

Almost surely, 2^25753453772 is an apocalyptic number.

It is an amenable number.

25753453772 is a deficient number, since it is larger than the sum of its proper divisors (19315090336).

25753453772 is a wasteful number, since it uses less digits than its factorization.

25753453772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438363447 (or 6438363445 counting only the distinct ones).

The product of its digits is 6174000, while the sum is 50.

The spelling of 25753453772 in words is "twenty-five billion, seven hundred fifty-three million, four hundred fifty-three thousand, seven hundred seventy-two".