650253491237 has 12 divisors (see below), whose sum is σ = 756727345836. Its totient is φ = 557131700160.

The previous prime is 650253491233. The next prime is 650253491243. The reversal of 650253491237 is 732194352056.

It can be written as a sum of positive squares in 2 ways, for example, as 333328403716 + 316925087521 = 577346^2 + 562961^2 .

It is not a de Polignac number, because 650253491237 - 2² = 650253491233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 650253491191 and 650253491200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650253491233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2598638 + ... + 2837855.

It is an arithmetic number, because the mean of its divisors is an integer number (63060612153).

Almost surely, 2^650253491237 is an apocalyptic number.

It is an amenable number.

650253491237 is a deficient number, since it is larger than the sum of its proper divisors (106473854599).

650253491237 is a wasteful number, since it uses less digits than its factorization.

650253491237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5438948 (or 5438941 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 650253491237 in words is "six hundred fifty billion, two hundred fifty-three million, four hundred ninety-one thousand, two hundred thirty-seven".