253501525040 has 40 divisors (see below), whose sum is σ = 593006972208. Its totient is φ = 100778515200.

The previous prime is 253501525009. The next prime is 253501525073. The reversal of 253501525040 is 40525105352.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 253501524988 and 253501525006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9707111 + ... + 9733190.

Almost surely, 2^253501525040 is an apocalyptic number.

253501525040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253501525040 is an abundant number, since it is smaller than the sum of its proper divisors (339505447168).

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

253501525040 is a wasteful number, since it uses less digits than its factorization.

253501525040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19440477 (or 19440471 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 253501525040 in words is "two hundred fifty-three billion, five hundred one million, five hundred twenty-five thousand, forty".