1523253112540 has 48 divisors (see below), whose sum is σ = 3277162050624. Its totient is φ = 594383961600.

The previous prime is 1523253112483. The next prime is 1523253112543. The reversal of 1523253112540 is 452113523251.

It is a junction number, because it is equal to n+sod(n) for n = 1523253112496 and 1523253112505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523253112543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9173050 + ... + 9337630.

It is an arithmetic number, because the mean of its divisors is an integer number (68274209388).

Almost surely, 2^{1523253112540} is an apocalyptic number.

1523253112540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1523253112540 is an abundant number, since it is smaller than the sum of its proper divisors (1753908938084).

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

1523253112540 is a wasteful number, since it uses less digits than its factorization.

1523253112540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175918 (or 175916 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 1523253112540 its reverse (452113523251), we get a palindrome (1975366635791).

The spelling of 1523253112540 in words is "one trillion, five hundred twenty-three billion, two hundred fifty-three million, one hundred twelve thousand, five hundred forty".