51948436 has 12 divisors (see below), whose sum is σ = 93842560. Its totient is φ = 25136280.

The previous prime is 51948431. The next prime is 51948439. The reversal of 51948436 is 63484915.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51948431) 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, 209346 + ... + 209593.

Almost surely, 2^51948436 is an apocalyptic number.

It is an amenable number.

51948436 is a deficient number, since it is larger than the sum of its proper divisors (41894124).

51948436 is a wasteful number, since it uses less digits than its factorization.

51948436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418974 (or 418972 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 51948436 is about 7207.5263440379. The cubic root of 51948436 is about 373.1277010299.

The spelling of 51948436 in words is "fifty-one million, nine hundred forty-eight thousand, four hundred thirty-six".