2507212738 has 8 divisors (see below), whose sum is σ = 3799590732. Its totient is φ = 1240682496.

The previous prime is 2507212733. The next prime is 2507212781. The reversal of 2507212738 is 8372127052.

It can be written as a sum of positive squares in 2 ways, for example, as 2208718009 + 298494729 = 46997^2 + 17277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2507212738² = 12572231427178913288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2507212697 and 2507212706.

It is not an unprimeable number, because it can be changed into a prime (2507212733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6461695 + ... + 6462082.

Almost surely, 2^2507212738 is an apocalyptic number.

2507212738 is a deficient number, since it is larger than the sum of its proper divisors (1292377994).

2507212738 is a wasteful number, since it uses less digits than its factorization.

2507212738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12923876.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 2507212738 is about 50072.0754313220. The cubic root of 2507212738 is about 1358.5127806116.

The spelling of 2507212738 in words is "two billion, five hundred seven million, two hundred twelve thousand, seven hundred thirty-eight".