245235401523 has 16 divisors (see below), whose sum is σ = 415213378560. Its totient is φ = 140134515048.

The previous prime is 245235401519. The next prime is 245235401561. The reversal of 245235401523 is 325104532542.

245235401523 is a `hidden beast` number, since 2 + 45 + 23 + 540 + 1 + 52 + 3 = 666.

It is not a de Polignac number, because 245235401523 - 2² = 245235401519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245235401513) 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, 648770715 + ... + 648771092.

It is an arithmetic number, because the mean of its divisors is an integer number (25950836160).

Almost surely, 2^245235401523 is an apocalyptic number.

245235401523 is a deficient number, since it is larger than the sum of its proper divisors (169977977037).

245235401523 is a wasteful number, since it uses less digits than its factorization.

245235401523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297541823 (or 1297541817 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 245235401523 in words is "two hundred forty-five billion, two hundred thirty-five million, four hundred one thousand, five hundred twenty-three".