2516021532 has 18 divisors (see below), whose sum is σ = 6359943408. Its totient is φ = 838673832.

The previous prime is 2516021507. The next prime is 2516021537. The reversal of 2516021532 is 2351206152.

It is a happy number.

2516021532 is a `hidden beast` number, since 2 + 5 + 1 + 602 + 1 + 53 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 2516021496 and 2516021505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2516021537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34944708 + ... + 34944779.

Almost surely, 2^2516021532 is an apocalyptic number.

It is an amenable number.

2516021532 is an abundant number, since it is smaller than the sum of its proper divisors (3843921876).

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

2516021532 is a wasteful number, since it uses less digits than its factorization.

2516021532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69889497 (or 69889492 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2516021532 is about 50159.9594497444. The cubic root of 2516021532 is about 1360.1019120573.

Adding to 2516021532 its reverse (2351206152), we get a palindrome (4867227684).

The spelling of 2516021532 in words is "two billion, five hundred sixteen million, twenty-one thousand, five hundred thirty-two".