15225048861 has 8 divisors (see below), whose sum is σ = 22145525664. Its totient is φ = 9227302320.

The previous prime is 15225048833. The next prime is 15225048863. The reversal of 15225048861 is 16884052251.

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

It is not a de Polignac number, because 15225048861 - 2⁷ = 15225048733 is a prime.

It is a super-2 number, since 2×15225048861² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15225048863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230682526 + ... + 230682591.

It is an arithmetic number, because the mean of its divisors is an integer number (2768190708).

Almost surely, 2^15225048861 is an apocalyptic number.

15225048861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15225048861 is a deficient number, since it is larger than the sum of its proper divisors (6920476803).

15225048861 is a wasteful number, since it uses less digits than its factorization.

15225048861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461365131.

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 15225048861 in words is "fifteen billion, two hundred twenty-five million, forty-eight thousand, eight hundred sixty-one".