253635452940 has 48 divisors (see below), whose sum is σ = 710439770880. Its totient is φ = 67611311040.

The previous prime is 253635452869. The next prime is 253635452969. The reversal of 253635452940 is 49254536352.

It is a self number, because there is not a number n which added to its sum of digits gives 253635452940.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610080 + ... + 937799.

It is an arithmetic number, because the mean of its divisors is an integer number (14800828560).

Almost surely, 2^253635452940 is an apocalyptic number.

253635452940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253635452940 is an abundant number, since it is smaller than the sum of its proper divisors (456804317940).

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

253635452940 is a wasteful number, since it uses less digits than its factorization.

253635452940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550622 (or 1550620 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 48.

The spelling of 253635452940 in words is "two hundred fifty-three billion, six hundred thirty-five million, four hundred fifty-two thousand, nine hundred forty".