249525365442 has 32 divisors (see below), whose sum is σ = 503044496064. Its totient is φ = 82509960000.

The previous prime is 249525365431. The next prime is 249525365471. The reversal of 249525365442 is 244563525942.

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, 2141692 + ... + 2255192.

It is an arithmetic number, because the mean of its divisors is an integer number (15720140502).

Almost surely, 2^249525365442 is an apocalyptic number.

249525365442 is an abundant number, since it is smaller than the sum of its proper divisors (253519130622).

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

249525365442 is a wasteful number, since it uses less digits than its factorization.

249525365442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116434.

The product of its digits is 10368000, while the sum is 51.

The spelling of 249525365442 in words is "two hundred forty-nine billion, five hundred twenty-five million, three hundred sixty-five thousand, four hundred forty-two".