50101531440 has 40 divisors (see below), whose sum is σ = 155314748208. Its totient is φ = 13360408320.

The previous prime is 50101531397. The next prime is 50101531463. The reversal of 50101531440 is 4413510105.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 50101531440.

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, 104377951 + ... + 104378430.

Almost surely, 2^50101531440 is an apocalyptic number.

It is an amenable number.

50101531440 is an abundant number, since it is smaller than the sum of its proper divisors (105213216768).

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

50101531440 is a wasteful number, since it uses less digits than its factorization.

50101531440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208756397 (or 208756391 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 50101531440 in words is "fifty billion, one hundred one million, five hundred thirty-one thousand, four hundred forty".